From c07c4e42e6c1d5da8849180071229b83685ded73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8F=B2=E6=82=A6?= <shiyue@hdzxbj.com>
Date: Tue, 13 Jan 2026 11:11:50 +0800
Subject: [PATCH] =?UTF-8?q?=20-=20Netease-sync/server.js=EF=BC=9A=E5=9C=A8?=
 =?UTF-8?q?=20processSong=20=E4=B8=AD=E6=96=B0=E5=A2=9E=E6=8D=A2=E6=BA=90?=
 =?UTF-8?q?=E5=9B=9E=E9=80=80=E9=80=BB=E8=BE=91=20=20=20-=20=E6=97=A5?=
 =?UTF-8?q?=E5=BF=97=E4=BC=9A=E6=8F=90=E7=A4=BA=EF=BC=9A=20=20=20=20=20=20?=
 =?UTF-8?q?=20-=20Trying=20fallback=20source=20kuwo=20for=20...=20=20=20?=
 =?UTF-8?q?=20=20=20=20-=20No=20search=20hit=20from=20...=EF=BC=88?=
 =?UTF-8?q?=E8=8B=A5=E6=90=9C=E7=B4=A2=E6=97=A0=E7=BB=93=E6=9E=9C=EF=BC=89?=
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---
 Netease-sync/server.js | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Netease-sync/server.js b/Netease-sync/server.js
index b06a5df..e9f2895 100644
--- a/Netease-sync/server.js
+++ b/Netease-sync/server.js
@@ -551,6 +551,34 @@ async function processSong(song) {
             if (fallbackOk) return true;
         }
 
+        // 换源回退：kuwo -> qq
+        const fallbackSources = ['kuwo', 'qq'].filter(s => s !== source);
+        for (const fallbackSource of fallbackSources) {
+            console.log(`[Sync] Trying fallback source ${fallbackSource} for ${song.name}`);
+            const fallbackHit = await searchSongOnTuneHub(song.name, song.artist, fallbackSource);
+            if (!fallbackHit?.id) {
+                console.warn(`[Sync] No search hit from ${fallbackSource} for ${song.name}`);
+                continue;
+            }
+
+            const fallbackHeaders = buildDownloadHeaders(fallbackSource);
+            const fallbackCandidates = buildDownloadCandidates(
+                fallbackSource,
+                fallbackHit.id,
+                fallbackHit.url,
+                fallbackHit.types
+            );
+
+            const fallbackOk = await tryDownloadWithCandidates(
+                song,
+                fallbackSource,
+                baseName,
+                fallbackCandidates,
+                fallbackHeaders
+            );
+            if (fallbackOk) return true;
+        }
+
         return false; // Failed
 }